Re: SessionHandlerInterface protocol

From: Date: Wed, 23 Jun 2021 13:18:09 +0000
Subject: Re: SessionHandlerInterface protocol
References: 1 2 3 4  Groups: php.general 
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Le 23/06/2021 à 14:37, Christoph M. Becker a écrit :
On 23.06.2021 at 13:41, Mathieu Dubois wrote:
Le 23/06/2021 à 12:01, Christoph M. Becker a écrit :
Before ::read() is called, open() is called.  ::open() is suppossed to create the empty session data, if no data for the given session exist. This empty data string should then be returned from ::read().  If ::read() fails to read the data, it should return false (or actually any non-string value in the current implementation) to signal failure.
I might be confused but the session id is not passed to ::open() so how is it supposed to create the empty session data ? By using session_id ?
Ah, right, ::open() is not supposed to create the empty session data. This can be done in ::read(); the built-in "files" handler does this, for instance; if the file does not exist and can't be created, ::read() fails.
OK, that was the only explanation that made sense. Do we agree that the doc could be improved by stating this more clearly ? Mathieu -- Mathieu Dubois - IR - UMR 8030 équipe LABGeM CEA - Genoscope. 2 rue Gaston Crémieux. 91057 Evry Cedex France. Bureau B07 +33 1 60 87 53 35

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